Senior Backend Engineer (Laravel)

AJAY KUMAR JOSHI

Senior Backend Engineer Laravel Tech Lead

Mathura, Uttar Pradesh, India +91-904******* *********.***@*****.*** linkedin.com/in/ajay-joshi-mtr github.com/Ajay-joshi-mtr ajayjoshi.dev PROFESSIONAL SUMMARY

Senior Backend Engineer with 9+ years of experience designing and building scalable SaaS platforms, ERPs, REST APIs, and business-critical applications on PHP/Laravel. Delivered enterprise integrations

(Microsoft Dynamics 365 Business Central, Shopify, WhatsApp/Facebook Graph API, RazorPay, Shipmondo, Dinero) and multi-tenant products from architecture through production. Built AI-powered search

(RAG, semantic and vector search with Typesense), event-driven systems with NATS and Laravel queues, and re-architected MySQL infrastructure (master-replica clusters with ProxySQL) for read-heavy production workloads. Maintains internal Laravel packages for modular application design. Expanding into Golang for external services. Mentors teams of 3–5 developers and serves on technical interview panels. CORE COMPETENCIES

Backend Architecture & API Design · Laravel Application Development (up to Laravel 11) · Multi-Tenant SaaS & ERP Development · AI-Powered Search (RAG, Semantic & Vector Search) · Event-Driven Architecture (NATS, Queue Workers) · MySQL Scaling: Replication, ProxySQL, Query Optimization · Shopify App Development · WhatsApp Business Automation at Scale · Enterprise & Third-Party System Integration · Cloud & Self-Hosted Infrastructure (AWS, OCI, DigitalOcean, VPS) · Team Mentoring & Technical Interviewing

TECHNICAL SKILLS

Languages: PHP 8.x, JavaScript, SQL, Golang (external services; actively deepening), HTML5, CSS3 Frameworks & Libraries: Laravel (5.x–11), Laravel Lumen, FilamentPHP, Livewire, React.js, Inertia.js, Next.js, Remix, Gatsby, CodeIgniter 3

Databases & Analytics: MySQL (master-replica replication, ProxySQL), PostgreSQL, MongoDB, Redis, Google Firestore, Google BigQuery

Search & AI: Typesense (self-hosted), RAG pipelines, semantic search, vector search/embeddings, OpenAI API (structured outputs)

Messaging & Events: NATS, Laravel Queues (Horizon, Supervisor workers), Laravel Scheduler, Laravel Octane, Laravel Reverb, Webhooks, Laravel WebSockets Architecture & Patterns: REST APIs, Microservices, Event-Driven Architecture, Repository Pattern, SOLID Principles, Modular Package Design

DevOps & Cloud: Docker, Docker Compose, Nginx, Supervisor, Linux/Ubuntu, AWS (EC2, S3, IAM, Route53), Cloudflare (Workers, R2 storage, D1 database), Oracle Cloud Infrastructure (OCI), DigitalOcean, self-hosted VPS management (Coolify, Portainer, Dockhand), CI/CD (GitHub Actions), Git Integrations & APIs: Shopify (Admin API + app development), WhatsApp Business/Cloud API, Facebook Graph API, Microsoft Dynamics 365 Business Central, RazorPay, Shipmondo, Dinero, Amazon Seller API, Firebase (push notifications), SMS gateways (Fast2SMS, two-way SMS), OSRM (self-hosted routing), WooCommerce, WordPress, Strapi CMS, Laravel Sanctum Tools: VS Code, Git/GitHub, Postman, Composer, npm/Vite PROFESSIONAL EXPERIENCE

Senior Software Developer — OutDo Solutions LLP, Noida July 2022 – Present

• Developed the backend powering Sesame Workshop India's published Android app

(css.sesameworkshopindia.org), serving 13,000+ active users — built with FilamentPHP on Laravel, Firestore-based analytics, BigQuery pipelines for daily metrics and partner-funnel reports, and CMS- driven gamification (videos and quizzes).

• Designed and developed a multi-tenant SaaS Vendor Management Platform (vms.glenindia.com) on Laravel/MySQL/PHP 8, integrating Microsoft Dynamics 365 Business Central for vendor onboarding, approval workflows, and role-based permissions.

• Architected the national-level GLEN Service Ticket platform processing 28,000+ tickets monthly across India — WhatsApp Business API automation for ticket intake and status updates alongside call-center and dealer/service-center entry — with modular packages for private incentives, Firebase push notifications, SMS notifications, Amazon Seller API, and Microsoft Dynamics integrations.

• Developed the backend for Likhe Academy's published Android app (likheapp.techstreet.in) in FilamentPHP — dockerized deployment with dedicated queue-worker containers, self-hosted Typesense delivering typo-tolerant instant search across millions of words (indexed via Laravel observers and queued jobs), and OpenAI integration with schema-based structured outputs that convert uploaded documents into stored word definitions.

• Built a complete ERP system for a Danish client (probatteri.dk) on Laravel 11, Livewire, and MySQL

— integrating Shipmondo shipping, Dinero accounting/payments, two-way SMS conversations across multiple numbers, 5-year service warranty tracking, and queue workers for scheduled customer status-update SMS.

• Re-architected MySQL infrastructure for read-heavy production applications (GLEN Service Ticket, FuelFlip CRM, PowerGuard, Kinsco): designed a self-hosted master-replica cluster fronted by ProxySQL, eliminating daily out-of-memory crashes and connection-pool exhaustion.

• Developed "Warp AI Search & Filter", a Shopify app providing AI-powered product search and filtering using RAG, semantic and vector search on the Typesense search engine, with edge components built on Cloudflare Workers and D1.

• Built a SaaS WhatsApp Automation Platform (Facebook Graph API, Shopify API, RazorPay Payment Links, async queue workers) and a drag-and-drop WhatsApp Flow Builder (Laravel, React, Inertia.js) for B2B client Netcarrot.

• Developed Matrisha (matrisha.org), a patient-data healthcare platform: Remix dashboard, Lumen microservice backend on MongoDB, and REST APIs for the mobile app, with role-based access for ASHA, ANM, and doctor users.

• Built a self-hosted OSRM-based routing service (map.digisty.com) powering technician travel- distance calculations in the Sujata CRM backend, and customized an open-source URL shortener

(q9u.in) with S3-compatible storage for service-ticket feedback links.

• Developed backend APIs and a FilamentPHP block-editor CMS (panel.vgcadvisors.com) powering the VGC Advisors website (vgcadvisors.com).

• Developed and maintained internal Laravel packages implementing shared modular designs; implemented NATS event publishing for inter-service communication and built selected external services in Golang.

• Mentor a team of 3–4 developers and serve on the technical interview panel; currently building an eOffice Management System on Laravel and MongoDB.

• Reduced application response times by 30% through Redis caching and Laravel ORM query optimization.

Senior Developer — Team MP2IT Pvt. Ltd., Mathura

October 2019 – June 2022

• Designed and developed a CRM platform for scholar/student management on Laravel, MySQL, and PHP 7, incorporating Laravel WebSockets for real-time dashboards.

• Built an Attendance Management system in Livewire with a companion Chrome extension for punch- in/punch-out via REST API secured with Laravel Sanctum.

• Built wrirk.com using Strapi CMS with a Next.js frontend, integrating custom CRM and topic APIs.

• Developed the MP2IT corporate website (mp2it.com) on Strapi (Node.js) CMS with Gatsby and React.js.

• Managed self-hosted infrastructure on VPS and managed servers — deployments, SSL, backups, and monitoring.

• Mentored a team of 4–5 junior developers and served on the technical hiring interview panel. Web Developer — IQuinceSoft Pvt. Ltd., Mathura

July 2017 – October 2019

• Built and maintained client web applications across CodeIgniter 3, Core PHP/Smarty, and WordPress — including a custom WordPress REST API with a React.js SPA frontend

(dymotions.com) and a WooCommerce e-commerce platform deployed on AWS

(goodluckafrica.com).

EDUCATION

Master of Computer Applications (MCA) — Rajiv Academy for Technology and Management, Mathura — 2014

Bachelor of Computer Applications (BCA) — GLA Institute of Professional Studies, Mathura — 2011 OPEN SOURCE

• PolymorphicHistory (github.com/Ajay-joshi-mtr/PolymorphicHistory) — Laravel package for tracking model change history via polymorphic relations.

• fast2sms (github.com/Ajay-joshi-mtr/fast2sms) — Laravel package for sending SMS through the Fast2SMS gateway.

• Author and maintainer of internal Laravel packages for modular application design across company projects.

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